package thread;

public class SyncDemo1 {
    public static void main(String[] args) {
        Table table =new Table();
        Thread t1 = new Thread(){
            public void run() {
                while (true){
                    int bean = table.getBean();
                    Thread.yield();
                    System.out.println(getName()+":"+bean);
                }
            }
        };
        Thread t2 = new Thread(){
            public void run() {
                while (true){
                    int bean = table.getBean();
                    Thread.yield();
                    System.out.println(getName()+":"+bean);
                }
            }
        };
        t1.start();
        t2.start();
    }
}
class Table{
    private int beans = 20;
    public int getBean(){
      if (beans==0){
          throw new RuntimeException("没有豆子了");
      }
      Thread.yield();
      return beans--;
    }
}